Finding the Fourth Proportional to 2,335.82, 3,505.10 and 2,155.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,335.82 : 3,505.10 = 2,155.41 : x
2. Step 2: Convert to fraction form
   2,335.82/3,505.10 = 2,155.41/x
3. Step 3: Cross multiply
   2,335.82x = 3,505.10 × 2,155.41
4. Step 4: Simplify right side
   2,335.82x = 7,554,916.81
5. Step 5: Solve for x
   x = 7,554,916.81/2,335.82
6. Step 6: Final answer
   x = 3,234.38